40441212 has 36 divisors (see below), whose sum is σ = 116830896. Its totient is φ = 11554560.

The previous prime is 40441201. The next prime is 40441213. The reversal of 40441212 is 21214404.

40441212 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40441213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 79989 + ... + 80492.

Almost surely, 2^40441212 is an apocalyptic number.

40441212 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

It is an amenable number.

40441212 is an abundant number, since it is smaller than the sum of its proper divisors (76389684).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40441212 is a wasteful number, since it uses less digits than its factorization.

40441212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160498 (or 160493 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

The square root of 40441212 is about 6359.3405318476. The cubic root of 40441212 is about 343.2480306717.

Adding to 40441212 its reverse (21214404), we get a palindrome (61655616).

It can be divided in two parts, 404 and 41212, that added together give a triangular number (41616 = T₂₈₈).

The spelling of 40441212 in words is "forty million, four hundred forty-one thousand, two hundred twelve".